CVE-2026-11943 Akaunting 3.1.21 - Authenticated stored XSS in document timeline
An authenticated user can inject malicious scripts via their profile name, leading to stored XSS in the document timeline of invoices and bills.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-11943?
CVE-2026-11943 is a medium-severity cross-site scripting vulnerability in Akaunting, published on 22 Jun 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Akaunting 3.1.21 contains an authenticated stored cross-site scripting vulnerability in the document timeline shown on invoice and bill detail pages. An authenticated user can store HTML/JavaScript in their own profile name.
Weakness: CWE-79
Which versions are affected by CVE-2026-11943?
How do I fix CVE-2026-11943?
No fix has been published for CVE-2026-11943 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-11943 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11943 exists.
Sources
Also known as GHSA-c9g5-5438-6vvf.